Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9464507 | Casing valves system for selective well stimulation and control | Timothy R. Tips | 2016-10-11 |
| 9033054 | Metal to metal seal for downhole tools | — | 2015-05-19 |
| 8893787 | Operation of casing valves system for selective well stimulation and control | Timothy R. Tips | 2014-11-25 |
| 7950461 | Screened valve system for selective well stimulation and control | Kirby G. Schrader, Bharathwaj Kannan | 2011-05-31 |
| 7861788 | Casing valves system for selective well stimulation and control | Timothy R. Tips | 2011-01-04 |
| 7013980 | Hydraulically actuated control system for use in a subterranean well | Daniel George Purkis | 2006-03-21 |
| 6155803 | Rodless pumping system | Floyd John Bradford, Jr. | 2000-12-05 |
| 5487427 | Slip release mechanism | — | 1996-01-30 |
| 5353876 | Method and apparatus for sealing the juncture between a verticle well and one or more horizontal wells using mandrel means | L. Cameron White, Daniel S. Bangert | 1994-10-11 |
| 5325924 | Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means | Daniel S. Bangert, L. Cameron White | 1994-07-05 |
| 5311936 | Method and apparatus for isolating one horizontal production zone in a multilateral well | Robert J. McNair, Mark W. Brockman, L. Cameron White, Jeffrey D. Cockrell, Daniel S. Bangert | 1994-05-17 |
| 4949792 | Packer assembly and means for activating same only in smaller diameter well conduit | Richard P. Rubbo | 1990-08-21 |
| 4949793 | Method and apparatus for completion of a well | Richard P. Rubbo, F. T. Tilton, A. A. Mullins, Daniel S. Bangert, Forrest W. Howard +1 more | 1990-08-21 |
| 4798243 | Packer with electrical conduit bypass | Napoleon Arizmendi | 1989-01-17 |
| 4307780 | Angular whipstock alignment means | — | 1981-12-29 |
| 4304299 | Method for setting and orienting a whipstock in a well conduit | Arvin E. Holland, Douglas C. Wright | 1981-12-08 |
| 4285399 | Apparatus for setting and orienting a whipstock in a well conduit | Arvin E. Holland, Douglas C. Wright, John R. Baker | 1981-08-25 |
| 4278135 | Variable volume pneumatic drill | — | 1981-07-14 |